For transport, power grids and buildings to become more efficient, there must be rules on how, for instance, refrigerators should talk to electricity meters, and thermostats to heating systems.
要让交通、电网和建筑更加高效，必须制定规则，规定如何，比如，让冰箱和恒温器更节能。
Such melting from below is particularly efficient since the temperature at the ice-ocean interface is fixed by the phase equilibrium that must be maintained there.
海冰交接面上的相平衡*1保证了那里的温度稳定不变，这就使得这种由下而上的融化尤为高效。
In order to meet the screw air compressor operation of the energy saving, there must be an efficient change speed motor drive.
为了满足螺杆空压机运行中的节能，必须有一种高效率变转速的驱动电机。
In order to meet the screw air compressor operation of the energy saving, there must be an efficient change speed motor drive.
为了满足螺杆空压机运行中的节能，必须有一种高效率变转速的驱动电机。
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